# Water softening cartridge Klarwod ST10 — replacement cartridge for domestic water softener

**URL:** https://aio.lv/en/product--klarwod-st10--11920868
**Data updated:** 2026-03-10 09:26 (EET)
**Category:** Water Filters
**Manufacturer:** Klarwod
**Manufacturer code:** ST10
**EAN:** 5903111200213
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--klarwod-st10--11920868

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Klarwod Wkład zmiękczający 10 (model ST10) is a replacement water softening cartridge designed for domestic water softeners. It reduces water hardness by ion exchange or resin-based softening, protecting plumbing, appliances and improving soap performance. Suited for routine cartridge replacement in household filtration systems where compatibility with ST10 format is required.

## Long description

The Klarwod ST10 water softening cartridge is a replacement cartridge designed for domestic water softeners in ST10-compatible housings. It reduces water hardness through ion-exchange resin, helping to prevent scale buildup in plumbing and household appliances. The cartridge is intended for routine replacement and ensures continued soft water performance for washing, bathing and appliance operation.
Advantages
The cartridge delivers consistent hardness reduction by using a resin-based softening process suited to household supply conditions. It helps extend the service life of kettles, boilers and washing machines by lowering lime scale formation, and it improves detergent and soap performance by providing softer water. Installation is designed to be straightforward in systems that accept the ST10 format, enabling routine cartridge changes without specialised tools.
Suitable for
Domestic water softener units compatible with ST10 cartridges
Homes with hard or moderately hard mains water
Appliance protection for kettles, boilers, dishwashers and washing machines
Improving cleaning and lathering efficiency of soaps and detergents
Key specifications
Softening method: ion-exchange resin
Intended use: household/domestic water treatment
Form factor: cartridge for ST10-compatible housings
Function: reduction of calcium and magnesium ions to limit scale formation
How to use
Remove the spent cartridge from the softener housing according to the softener manufacturer’s instructions, flush the housing if recommended, and insert the Klarwod ST10 cartridge until it seats securely. Follow any system-specific priming or bypass procedures before returning the softener to service. Observe local guidelines for pressure and temperature limits of your softener unit when installing the cartridge.
Usage recommendations
Replace the cartridge at intervals recommended by your water softener manufacturer or when water hardness returns to undesirable levels. Periodic system maintenance, including resin regeneration cycles where applicable and following the softener’s operating instructions, will help maintain optimal softening performance and protect connected appliances.

## FAQ

### How much does the Klarwod ST10 water softening cartridge cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 63 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Klarwod products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Klarwod service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11920868/67352474_large.webp